EP1159673A1 - Generateur de nombres aleatoires haut debit - Google Patents
Generateur de nombres aleatoires haut debitInfo
- Publication number
- EP1159673A1 EP1159673A1 EP00988887A EP00988887A EP1159673A1 EP 1159673 A1 EP1159673 A1 EP 1159673A1 EP 00988887 A EP00988887 A EP 00988887A EP 00988887 A EP00988887 A EP 00988887A EP 1159673 A1 EP1159673 A1 EP 1159673A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- generator
- random
- signal
- output
- physical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/58—Random or pseudo-random number generators
- G06F7/588—Random number generators, i.e. based on natural stochastic processes
Definitions
- the present invention is in the field of encryption and relates more particularly to a hardware solution for the implementation of a generator of random numbers intended in particular for the generation of encryption keys.
- the increased need for performance in cryptography associated with that of inviolability leads security system providers to favor hardware solutions that are more and more efficient in terms of throughput and quality of hazards.
- the generator according to the invention also called random generator, can be associated with an additional PCI card, English abbreviations for "Peripheral Component Interconnect" allowing to accelerate the cryptographic functions of a machine: server or station. Such a card coupled to a server will constitute the material security element of the machine.
- the first type of generator is based on a random physical phenomenon such as thermal noise in a diode, radioactive emission, etc. It is called a "physical generator" in the following description.
- the second type of generator is based on an algorithm supplied by a "seed”, defined later, which outputs a series of random numbers with a greater or lesser period. It is called “pseudo-random generator” in the remainder of the description.
- seed defined later
- Pseudo-random generator A long period associated with a good quality germ, in terms of quality of hazards, provides at the output of such a generator, a series of almost unpredictable numbers.
- Physical generators are of course the only real sources of random numbers since they are completely unpredictable, but many of them are not free from correlations at the level of their output. On the other hand, their speed is generally quite low, of the order of a few tens of kilobits per second.
- pseudo-random generators they are simple to implement in software form and make it possible to provide a large flow of random numbers of the order of a few tens of megabits per second.
- the quality of a random generator is difficult to estimate because there is no official and standardized procedure allowing to check the more or less random character of a sequence of numbers.
- FIPS140 tests The first series of tests, called FIPS140 tests, is described in the document FIPS140-1 entitled “Security requirements for cryptography modules” issued by the American organization NIST. These tests constitute the minimum required for any security component wishing to claim the label “FIPS140 compliant", one of the objectives of the present invention.
- the invention particularly aims to overcome the aforementioned drawbacks and overcomes a specific physical circuit such as a noise diode, while meeting the double requirement of high speed, greater than 100 Mbits / s, and very good quality of the hazards provided; quality measured by the fact that the generator must successfully pass the FIPS140 and DIEHARD test series mentioned above.
- High speed random number generator (1) comprising a physical random number generator (5) and the data input of which corresponds to the data input of the physical generator (5), and generator pseudo-random (6) coupled to the output of the physical generator (5) receiving at its input a seed delivered by the physical generator, said physical generator (5) comprising a logic circuit (10) comprising at least one data input D and a clock input (CLK), the data input (D) receiving a "high frequency” clock signal H1 and the clock input (CLK) receiving a second "low frequency” clock signal H2, the signal H1 "high frequency” being sampled by the signal H2 "low frequency", the two clock signals H1 and H2 of different frequencies respectively coming from two different oscillators (OSC1 and OSC2) working in asynchronism one of the other and not respecting the establishment time of the logic circuit (10), the output of the circuit (10) delivering a signal in an intermediate state qualified as metastable between "0" and “1” and consisting of a series of random numbers, metastability of the sign al obtained
- the second object of the invention is a mechanism for generating random numbers on demand, characterized in that it comprises a generator of random numbers as defined above, a dual-port memory comprising a reception buffer, coupled at the output of the generator on the generator bus, and in that it comprises a microprocessor, coupled to the dual-port memory by the microprocessor bus, communicating with the generator through the dual-port memory and posting in the dual-memory carries a command word comprising an address and an account containing a maximum number of random words to be stored, and in that the dual-port memory buffer, at the request of the microprocessor, is supplied by the generator's internal memory until an account corresponding to a determined maximum number of random numbers is exhausted, then exploited by the microprocessor.
- the third object of the invention is a card accelerating the cryptographic functions of a computer machine, characterized in that it supports a generator of random numbers or a mechanism as defined above.
- the invention has the advantage of using only standard electronic circuits for the production of a "physical" generator, and therefore of reducing the complexity and the cost of such a generator.
- FIG. 1 The general principle of a mechanism for generating random numbers into which the generator according to the invention is inserted is illustrated in FIG. 1.
- the mechanism is delimited in the figure by a discontinuous closed line which can also delimit a PCI card, mentioned above, supporting the mechanism.
- the random generator 1 is produced from an automaton in programmable logic, implemented in a programmable electronic component FPGA, Anglo-Saxon abbreviations for "Field Programmable Gate Array", and which under the control of a microprocessor 2 delivers at the request of this one random numbers with a high bit rate (D> 100 Mbits / s).
- a dual-port memory 3, of DMA type, Anglo-Saxon abbreviations for "Direct Memory Access” is coupled at the output of random generator 1 via the generator bus.
- the microprocessor 2 is coupled to the dual-port memory 3 via the microprocessor bus.
- the microprocessor 2 posts in the dual-port memory 3 a control word comprising only an address and an account.
- the address points to a reception buffer 3 ⁇ from the dual-port memory 3, in which the generator 1 stores the random words.
- the account meanwhile, sets the number of random words requested from generator 1 with a maximum capacity, for example of 32 Kbytes.
- the microprocessor 2 then sends an activation command of the "chip select" type to the generator 1 which reads the command word in the dual-port memory 3 and executes it.
- the generated words are then stored in the reception buffer 3 ⁇ , indicated by the microprocessor 2, until the maximum capacity of the account has been used up.
- the automaton of the random generator 1 then sends an interrupt command "interrupt" to the microprocessor 2 indicating to it that the buffer 3 ⁇ containing the results is available for reading.
- FIG. 2 The block diagram of a random generator according to the invention is illustrated in FIG. 2.
- the first stage 5 comprises a "physical" generator and the second stage
- the "physical” generator is a generator of random numbers based on the physical phenomena of metastability and phase noise of oscillators of different frequencies.
- the physical generator 5 supplies the pseudo-random generator 6 with a good quality random seed in the sense that it satisfies the FIPS140 tests and also has a bit rate of the order of 10 Kbits / s.
- the "pseudo-random" generator 6, starting from the seed received from the physical generator 5, implemented a multiplication-type algorithm with restraint having on the one hand a very good flow rate because implemented directly in hardware, and satisfying on the other hand both test series introduced above and detailed in the appendix.
- the two generators 5 and 6 operate at the rate of an external clock 7 generating a first "high frequency" clock signal H of frequency equal to 25 MHz.
- An oscillator 8 delivers a second "high frequency" signal H1 with a frequency equal to 33 MHz and constitutes the input signal of the physical generator 5.
- the FIFO memory 9 therefore serves to store the random numbers resulting from the processing carried out by the two generators 5 and 6 while waiting for the microprocessor 2 to request their transfer to the dual-port memory 3.
- the physical generator according to the invention exploits the so-called metastability phenomenon, the principle of which is explained in detail below with reference to FIGS. 3 and 4a to 4c.
- FIG. 3 shows a flip-flop receiving respectively on its input D and on its clock input, the clock signals H1 and H2 generated respectively by the oscillators OSC1 and OSC2.
- FIGS. 4a and 4b respectively illustrate examples of timing diagrams corresponding to the two clock signals.
- FIG. 4c illustrates a timing diagram corresponding to the output signal Q of the flip-flop.
- a “high frequency” signal H1 and a “low frequency” signal H2 are thus preferably chosen.
- the "high frequency” signal H1 is sampled by the "low frequency” signal H2.
- the phenomenon sought is thus accentuated by two physical phenomena:
- FIG. 5 illustrates the block diagram of a physical generator 5 according to the invention in which the flip-flop 10 described with reference to FIG. 3 is found for the explanation of metastability.
- the input module of the physical generator 5 is a counter 11 divider by 1312.
- an external clock signal H of frequency equal to 25 MHz, and generates as an output a "low frequency” clock signal H2 which samples the "high frequency” clock signal H1 input from the generator. 5, of frequency equal to 33 MHz.
- the clock signal H2 is injected at the clock input CLK of the flip-flop 10, and the signal H1 is injected at the input D of the flip-flop 10.
- the output signal obtained at output Q of flip-flop 10, is combined through a "or exclusive" logic circuit 12 with an output bit of the pseudo-random generator 6 and sent to input D of a 64-bit shift register referenced 13.
- the logic circuit 12 thus makes it possible to compensate for a possible failure of the physical generator 5.
- the shift register 13 reshapes the signal from the flip-flop 10. In the embodiment described, it generates two 32-bit random words every 32 x 100 ⁇ s, or approximately 3.2 ms. These two words constitute the "seed" used by pseudo-random generator 6 described below.
- a counter by 3750, 14 generates a LEN (Load Enable) signal which effectively loads a new seed into the pseudo-random generator 6 every 375 ms approximately.
- the physical generator 5 also comprises a test module 15 comprising two counters and a comparator, not shown.
- the two counters respectively receive the two clock signals H and H1, respectively 25 MHz and 33 MHz, and their outputs supply the comparator, and generate an error signal in the event of a malfunction (blocking) of the 33 MHz clock whose signal is used as an external "high frequency” signal H1.
- This test makes it possible to constantly check that the value of the signal used to generate the random seed is not blocked at "0" or at "1".
- the error signal invalidates the final output of the physical generator 5 by forcing the writing of zeros in the internal memory 9.
- the pseudo-random generator 6 is of the multiplication with restraint type. It is particularly suitable for the implementation of a generator according to the invention because of the speed of execution of its algorithm but is not however the only one which can be used by the pseudo-random generator.
- X: (A * X (15: 0)) + X (31: 16);
- Y: (B * Y (15: 0)) + Y (31: 16);
- X and Y are 32-bit variables initialized with the seed described above, A and B are 16-bit constants and PRN corresponds to a 32-bit word delivered at the output of the pseudo-random generator 6.
- the word PRN is sent to the internal memory 9 of the random generator 1 at the rate of a 32-bit word every 120 ns, ie an overall speed of 266 Mbits / s.
- the output of the internal memory 9 coupled to the dual-port memory 3 supplies the reception buffer of the dual-port memory 3.
- the reading of the internal memory 9 is carried out at the rate of a 32-bit word every 30 ns this in order not to slow down the internal speed of the random generator 1 and this, even in the event of conflict of access to the dual port memory 3.
- the present invention meets two objectives.
- the first objective is to achieve a compact hardware implementation of a random number generator entirely produced from standard components which do not use specific noise generator components, and which can also be supported by a PCI accelerator resource card. cryptographic of a computer machine.
- the second objective is to be able to respond to the desired flow and hazard constraints.
- a generator In this context, a generator
- the present invention associates a physical generator exploiting the phenomenon of metastability associated with that of phase noise to guarantee a germ of good quality of hazards, with a pseudo-random generator which accelerates the flow of germs delivered by the generator. physical and which, moreover, erases any correlations at the output of the physical generator which is not perfect.
- FIPS 140 tests are carried out on a sequence of 20,000 bits and include:
- POKER test test which divides the flow of 20,000 bits into 5,000 contiguous 4-bit sequences. For each sequence a function f (i) is evaluated which is equal to the number of times where the value 0 ⁇ i ⁇ 15 has appeared.
- the test is positive if 1.03 ⁇ X ⁇ 57.4
- test is positive if for each run length the number of results is within the corresponding interval
- bits 2-25 are :: :: used to provide birthdays, then 3-26 and so on to bits 9-32. ::: ::: Each set of bits provides a p-value, and the nine p-values ::: ::: provide a sample for a KSTEST. :: ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: THE OVERLAPPING 5-PERMUTATION TEST :: This is the OPERM5 test.
- bitstream test counts ::: the number of missing 20-letter (20-bit) words in a string of :: :: 2 ⁇ 21 overlapping 20-letter words. There are 2 ⁇ 20 possible 20
- OPSO means Overlapping-Pairs-Sparse-Occupancy
- the OPSO test considers 2-letter words from an alphabet of :: 1024 letters. Each letter is determined by a specified ten :: :: bits from a 32-bit integer in the sequence to be tested.
- OQSO means Overlapping-Quadruples-Sparse-Occupancy :: :: The test OQSO is similar, except that it considers 4-letter :: :: words from an alphabet of 32 letters, each letter determined ::
- the DNA test considers an alphabet of 4 letters :: C, G, A, T, :: :: determined by two designated bits in the sequence of random :: :: integers being tested. It considers 10-letter words, so that :::
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- General Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
- Storage Device Security (AREA)
- Tests Of Electronic Circuits (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9916123 | 1999-12-21 | ||
| FR9916123A FR2802661B1 (fr) | 1999-12-21 | 1999-12-21 | Generateur de nombres aleatoires haut debit |
| PCT/FR2000/003422 WO2001046797A1 (fr) | 1999-12-21 | 2000-12-07 | Generateur de nombres aleatoires haut debit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1159673A1 true EP1159673A1 (fr) | 2001-12-05 |
| EP1159673B1 EP1159673B1 (fr) | 2003-11-19 |
Family
ID=9553532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00988887A Expired - Lifetime EP1159673B1 (fr) | 1999-12-21 | 2000-12-07 | Generateur de nombres aleatoires haut debit |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6714955B2 (fr) |
| EP (1) | EP1159673B1 (fr) |
| AT (1) | ATE254775T1 (fr) |
| DE (1) | DE60006650T2 (fr) |
| FR (1) | FR2802661B1 (fr) |
| WO (1) | WO2001046797A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2395834C1 (ru) * | 2009-02-12 | 2010-07-27 | Государственное образовательное учреждение высшего профессионального образования "Саратовский государственный университет им. Н.Г. Чернышевского" | Генератор случайных перестановок |
| CN110928524A (zh) * | 2019-12-06 | 2020-03-27 | 南方科技大学 | 伪随机信号发生器 |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6324558B1 (en) | 1995-02-14 | 2001-11-27 | Scott A. Wilber | Random number generator and generation method |
| DE10000502A1 (de) * | 2000-01-08 | 2001-07-12 | Philips Corp Intellectual Pty | Datenverarbeitungseinrichtung und Verfahren zu dessen Betrieb |
| US6728893B1 (en) | 2000-04-21 | 2004-04-27 | Intel Corporation | Power management system for a random number generator |
| JP2002268874A (ja) * | 2001-03-07 | 2002-09-20 | Toshiba Corp | 乱数シード生成回路及びこれを備えたドライバ、並びに、sdメモリカードシステム |
| US7139397B2 (en) * | 2001-07-20 | 2006-11-21 | Stmicroelectronics S.R.L. | Hybrid architecture for realizing a random numbers generator |
| US7113966B2 (en) | 2001-07-25 | 2006-09-26 | Koninklijke Philips Electronics N.V. | Method and apparatus for decorrelating a random number generator using a pseudo-random sequence |
| US6862605B2 (en) * | 2001-08-15 | 2005-03-01 | Scott A. Wilber | True random number generator and entropy calculation device and method |
| US7587439B1 (en) * | 2001-08-31 | 2009-09-08 | Intergrated Device Technology, Inc. | Method and apparatus for generating a random bit stream in true random number generator fashion |
| US7219112B2 (en) * | 2001-11-20 | 2007-05-15 | Ip-First, Llc | Microprocessor with instruction translator for translating an instruction for storing random data bytes |
| US20060064448A1 (en) * | 2001-11-20 | 2006-03-23 | Ip-First, Llc. | Continuous multi-buffering random number generator |
| US7136991B2 (en) * | 2001-11-20 | 2006-11-14 | Henry G Glenn | Microprocessor including random number generator supporting operating system-independent multitasking operation |
| US20030236802A1 (en) * | 2002-06-20 | 2003-12-25 | Koninklijke Philips Electronics N.V. | Method and apparatus for generating a random number using the meta-stable behavior of latches |
| US7124155B2 (en) * | 2002-07-25 | 2006-10-17 | Koninklijke Philips Electronics N.V. | Latching electronic circuit for random number generation |
| US7233965B2 (en) * | 2002-09-30 | 2007-06-19 | Sun Microsystems, Inc. | Continuous random number generation method and apparatus |
| US7461111B2 (en) * | 2002-09-30 | 2008-12-02 | Fdk Corporation | Method of uniforming physical random number and physical number generation device |
| US7188131B2 (en) * | 2002-11-27 | 2007-03-06 | Stmicroelectronics S.A. | Random number generator |
| JP4248950B2 (ja) * | 2003-06-24 | 2009-04-02 | 株式会社ルネサステクノロジ | 乱数発生装置 |
| FR2860597B1 (fr) * | 2003-10-03 | 2006-01-27 | Essilor Int | Materiau thermodur antiplastifie comportant des atomes de soufre et lentille ophtalmique comprenant un materiau thermodur antiplastifie |
| FR2871252B1 (fr) * | 2004-06-06 | 2006-08-25 | Univ Jean Monnet | Procede pour generer des suites binaires aleatoires |
| EP1766568A1 (fr) * | 2004-06-14 | 2007-03-28 | The University of North Carolina at Greensboro | Systemes et procedes pour la securite de contenu numerique |
| US20060017656A1 (en) * | 2004-07-26 | 2006-01-26 | Visteon Global Technologies, Inc. | Image intensity control in overland night vision systems |
| WO2006015625A1 (fr) * | 2004-08-09 | 2006-02-16 | Telecom Italia S.P.A. | Procede et dispositif pour generer des donnees aleatoires |
| US8150900B2 (en) * | 2004-08-09 | 2012-04-03 | Telecom Italia S.P.A. | Random number generation based on logic circuits with feedback |
| US20090132624A1 (en) * | 2004-10-15 | 2009-05-21 | Koninklijke Philips Electronics N.V. | Integrated circuit with a true random number generator |
| GB2422691A (en) * | 2005-01-26 | 2006-08-02 | Marconi Comm Ltd | Pseudo-random number generator and method of operating thereof |
| US8619981B2 (en) * | 2005-05-12 | 2013-12-31 | Jds Uniphase Corporation | Systems and methods for producing pseudo-random number distributions in devices having limited processing and storage capabilities |
| US7716100B2 (en) * | 2005-12-02 | 2010-05-11 | Kuberre Systems, Inc. | Methods and systems for computing platform |
| DE102006030888B4 (de) * | 2006-07-04 | 2009-06-25 | Infineon Technologies Ag | Verfahren und Vorrichtung zum Erzeugen eines Startwertes für einen Pseudo-Zufallszahlengenerator |
| DE102006037016B4 (de) * | 2006-08-08 | 2009-04-23 | Giesecke & Devrient Gmbh | Pseudo-Zufallszahlengenerator für eine Chipkarte |
| US9367288B2 (en) * | 2006-11-22 | 2016-06-14 | Psigenics Corporation | Device and method responsive to influences of mind |
| KR101127961B1 (ko) | 2006-12-01 | 2012-04-12 | 한국전자통신연구원 | 오실레이터 샘플링 방법을 이용한 실난수 발생 장치 |
| RU2340931C1 (ru) * | 2007-03-28 | 2008-12-10 | ГОУ ВПО "Саратовский государственный университет имени Н.Г. Чернышевского" | Генератор случайных чисел |
| US20080304664A1 (en) * | 2007-06-07 | 2008-12-11 | Shanmugathasan Suthaharan | System and a method for securing information |
| US8583712B2 (en) * | 2007-09-18 | 2013-11-12 | Seagate Technology Llc | Multi-bit sampling of oscillator jitter for random number generation |
| US8312071B2 (en) | 2008-04-11 | 2012-11-13 | International Business Machines Corporation | Method and structure for provably fair random number generator |
| DE102008033162A1 (de) * | 2008-07-15 | 2010-01-21 | Feustel, Dietmar | Physikalischer Zufallszahlengenerator |
| US9335971B1 (en) * | 2009-02-27 | 2016-05-10 | Calamp Corp. | High entropy random bit source |
| US20100281088A1 (en) * | 2009-04-29 | 2010-11-04 | Psigenics Corporation | Integrated true random number generator |
| US8971530B2 (en) | 2009-06-24 | 2015-03-03 | Intel Corporation | Cryptographic key generation using a stored input value and a stored count value |
| US20110191129A1 (en) * | 2010-02-04 | 2011-08-04 | Netzer Moriya | Random Number Generator Generating Random Numbers According to an Arbitrary Probability Density Function |
| CN102736890A (zh) * | 2011-04-15 | 2012-10-17 | 深圳市证通电子股份有限公司 | 基于开环结构的高速随机数发生器 |
| US9058228B2 (en) | 2013-02-19 | 2015-06-16 | Raytheon Company | Random number generator for generating truly random numbers |
| WO2015013217A1 (fr) * | 2013-07-25 | 2015-01-29 | Part It | Dispositif, système et procédé de capture de comportement de véhicule motorisé |
| US9569176B2 (en) | 2014-10-30 | 2017-02-14 | Seagate Technology Llc | Deriving entropy from multiple sources having different trust levels |
| KR101920190B1 (ko) * | 2016-11-22 | 2019-02-08 | 한국인터넷진흥원 | 임의의 ip 생성 방법 및 그 장치 |
| US10579339B2 (en) * | 2017-04-05 | 2020-03-03 | Intel Corporation | Random number generator that includes physically unclonable circuits |
| US10536266B2 (en) | 2017-05-02 | 2020-01-14 | Seagate Technology Llc | Cryptographically securing entropy for later use |
| CN109412561A (zh) * | 2018-09-12 | 2019-03-01 | 上海华力集成电路制造有限公司 | 随机数发生器、随机序列产生电路及其工作过程 |
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| US4641102A (en) * | 1984-08-17 | 1987-02-03 | At&T Bell Laboratories | Random number generator |
| US5034906A (en) * | 1990-03-30 | 1991-07-23 | Microwave Logic | Pseudorandom Binary Sequence delay systems |
| US6065029A (en) * | 1998-05-26 | 2000-05-16 | N*Able Technologies, Inc. | Method and system for providing a random number generator |
-
1999
- 1999-12-21 FR FR9916123A patent/FR2802661B1/fr not_active Expired - Fee Related
-
2000
- 2000-12-07 US US09/913,356 patent/US6714955B2/en not_active Expired - Lifetime
- 2000-12-07 EP EP00988887A patent/EP1159673B1/fr not_active Expired - Lifetime
- 2000-12-07 DE DE60006650T patent/DE60006650T2/de not_active Expired - Lifetime
- 2000-12-07 AT AT00988887T patent/ATE254775T1/de not_active IP Right Cessation
- 2000-12-07 WO PCT/FR2000/003422 patent/WO2001046797A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0146797A1 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2395834C1 (ru) * | 2009-02-12 | 2010-07-27 | Государственное образовательное учреждение высшего профессионального образования "Саратовский государственный университет им. Н.Г. Чернышевского" | Генератор случайных перестановок |
| CN110928524A (zh) * | 2019-12-06 | 2020-03-27 | 南方科技大学 | 伪随机信号发生器 |
| CN110928524B (zh) * | 2019-12-06 | 2023-06-02 | 南方科技大学 | 伪随机信号发生器 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60006650T2 (de) | 2004-09-30 |
| FR2802661B1 (fr) | 2003-10-31 |
| US6714955B2 (en) | 2004-03-30 |
| EP1159673B1 (fr) | 2003-11-19 |
| US20030014452A1 (en) | 2003-01-16 |
| DE60006650D1 (de) | 2003-12-24 |
| FR2802661A1 (fr) | 2001-06-22 |
| ATE254775T1 (de) | 2003-12-15 |
| WO2001046797A1 (fr) | 2001-06-28 |
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